Saotome accidentally enrolled in a junior and senior high school for boys, but after enduring six tough years, he was excited about his upcoming college life! "I'm going to join the tennis club and live a campus life full of popularity!!" However, he unexpectedly encounters Onimaru, a senior from the tennis club from his days at the boys' school who was going on to the same university. He is forced to join the tennis club, not the tennis club, when he is asked if he wants to aim for the All Japan Tennis Championships, "Intercollegiate."